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Reference.org
October Holiday
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<p>In <a href="/facts/Republic_of_Ireland/k8JzXVze">Ireland</a>, the October Holiday is observed on the last Monday of October. Usually, but not always, this is the day after the end of <a href="/facts/Western_European_Summer_Time/k5faEyNF">Western European Summer Time</a>. It was introduced in 1977. </p>